Overview

Distribution

Range Description

This species is only known from southeastern Cuba, however, remains have been found from Late Quaternary and Amerindian sites all over the island (Ottenwalder, 2001 in Hutterer, 2005).
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Geographic Range

Presently, Solenodon cubanus is limited to the Oriente Province in Cuba. However, fossils show that Solenodon species lived on the North American mainland 30 million years ago (Grzimek, 1990).

Biogeographic Regions: neotropical (Native )

Other Geographic Terms: island endemic

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Historic Range:
Cuba

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Physical Description

Morphology

Physical Description

Cuban solenodons have relatively large heads, tiny eyes, and large, projecting and partially naked ears. They have a long proboscus with a supporting bone. Their forelegs are longer than their hindlegs. On their feet they have five fingers with powerful claws at the end. The tail is thick, scaly, and almost hairless (Grzimek, 1990). Solenondon has an incomplete zygomatic arch and no auditory bulla. Their dental formula is 3/3,1/1,3/3,3/3 = 40 (Vaughn et al., 2000). Solenodon cubanus has a longer and finer pelage than does S. paradoxous, the only other extant species of Solenodon. The pelage of S. cubanus is blackish brown with white or buff. Head and body length of Cuban solenodons ranges from 280 to 390 mm, tail length from 175 to 255 mm, and they weigh about 1 kilogram. Solenodons have glands in their inguinal and groin areas that secrete a musky, goat-like odor. Females have two mammae. The submaxillary glands of S. paradoxus produce toxic saliva, which may help them to subdue prey. Presumably, S. cubanus also produces toxic saliva (Nowak, 1999).

Average mass: 1 kg.

Range length: 280 to 390 mm.

Average mass: 1000 g.

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The Cuban solenodon is found in dense, humid forests and brush country. Small frogs, insects and spiders, found in soil and in leaf litter form most of its diet. Solenodons obtain food by rooting in the ground with their snouts and by tearing into rotten logs and trees with their foreclaws. This species is mainly nocturnal, hiding during the day in rock clefts, hollow trees, or burrows which it excavates itself. Adult Cuban solenodons are solitary, other than mothers with young. Litter size is 1 or 2 young. The young are born in a nesting burrow. Young remain with their mother for several months (Varona, 1980; Ottenwalder, 2001 in Hutterer, 2005; pers. comm. Juan Soy).

Systems
  • Terrestrial
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Habitat

Solenodon lives in family groups in caves, natural hollows, and burrows in dense, wet mountain forests (Nowak, 1999).

Habitat Regions: tropical ; terrestrial

Terrestrial Biomes: forest ; rainforest

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Trophic Strategy

Food Habits

Cuban solenodons are generalized omnivores that prefer animal material. They prey primarily on invertebrates, but also scavenge on vertebrate remains (Vaughn et al., 2000). They also eat insects, worms, small reptiles, roots, fruits, and leaves. Unfortunately, even though they have a large array of dietary items to choose from, their population is decling due to the slow rate of breeding (The International Wildlife Encyclopedia, 1974). Cuban solenodons find food by rooting with their snouts or digging and uncovering animals with their large claws.

Animal Foods: reptiles; carrion ; insects; terrestrial worms

Plant Foods: leaves; roots and tubers; fruit

Primary Diet: carnivore (Insectivore )

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Associations

Ecosystem Roles

Cuban solenodons are important small, generalized predators in the ecosystems they inhabit. They help to control populations of invertebrates and may disperse the seeds of the fruits they eat.

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Predation

Cuban solenodons may be preyed on by snakes and birds of prey. Their secretive, burrowing habits probably protect them from many predators. They may also be able to use their toxic salivary secretions as a defense mechanism.

Known Predators:

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Known predators

Solenodon cubanus is prey of:
Strigiformes
Serpentes
Falconiformes

This list may not be complete but is based on published studies.
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Known prey organisms

Solenodon cubanus preys on:
Annelida
Insecta
Reptilia

This list may not be complete but is based on published studies.
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Life History and Behavior

Life Expectancy

Lifespan/Longevity

Solenodon are relatively long lived animals. A Cuban solenodon lived more than 5 years in captivity. They may be able to live longer as a Hispaniolan solenodon lived to 11 years in captivity (Vaughn et al., 2000).

Range lifespan

Status: captivity:
5 (high) years.

Average lifespan

Status: captivity:
6.0 years.

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Lifespan, longevity, and ageing

Observations: These animals are expected to live up to 6.5 years (Ronald Nowak 1999). Given the longevity of similar species, it is likely maximum longevity is underestimated and further studies are necessary.
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Reproduction

Reproduction

Mating behavior in solenodons is unknown.

Very little is known about reproduction in solenodons. Cuban solenodons have low reproductive rates of 1 to 2 offspring per litter. The young are born in a burrow. They have two litters per year and the young stay with their mother for several months (The International Wildlife Encyclopedia, 1974; Massicot, 2001). Young from multiple litters may stay with their mother, with as many as 8 solenodons being found in a single nest.

Breeding season: Breeding and births may occur throughout the year.

Range number of offspring: 1 to 2.

Key Reproductive Features: iteroparous ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; fertilization (Internal ); viviparous

Average number of offspring: 1.5.

Young are cared for in their mothers nest until they reach independence. Presumably males do not care for young.

Parental Investment: altricial ; female parental care

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(iii,v)

Version
3.1

Year Assessed
2008

Assessor/s
Soy, J. & Mancina, C.A.

Reviewer/s
Amori, G. (Small Nonvolant Mammal Red List Authority) & Chanson, J. (Global Mammal Assessment Team)

Justification
Listed as Endangered because its extent of occurrence is less than 5,000 km², all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat, as well as the number of mature individuals due to predation by introduced species.

History
  • 1996
    Endangered
  • 1994
    Endangered
    (Groombridge 1994)
  • 1990
    Endangered
    (IUCN 1990)
  • 1988
    Endangered
    (IUCN Conservation Monitoring Centre 1988)
  • 1986
    Endangered
    (IUCN Conservation Monitoring Centre 1986)
  • 1982
    Endangered
    (Thornback and Jenkins 1982)
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Conservation Status

Both S. cubanus and S. paradoxus are listed as endangered by the IUCN (Nowak, 1999). Populations of S. cubanus are declining due to the introduction of Old World rats (Rattus), mongoose (Herpestes), domestic dogs, and domesticc cats into the West Indies. The clearing of land for agriculture has also led to their decline (Vaughn et al., 2000).

CITES: no special status

IUCN Red List of Threatened Species: endangered

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Current Listing Status Summary

Status: Endangered
Date Listed: 06/02/1970
Lead Region: Foreign (Region 10) 
Where Listed:


Population detail:

Population location: entire
Listing status: E

For most current information and documents related to the conservation status and management of Solenodon cubanus , see its USFWS Species Profile

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Population

Population
By 1970, some thought that the Cuban solenodon had become extinct, since no specimens had been found since 1890. However, three were captured in 1974 and 1975, and subsequent surveys showed that it still occurred in many places in central and western Oriente Province, at the eastern end of Cuba. However, it is rare everywhere. It is considered to be even more rare than S. paradoxus (pers. comm. Carlos A. Mancina).

The last alive specimens of S. cubanus were found in Sierra del Cristal National Park in 1998 and Alexander Humboldt National Park in 2003, Holguin Province. One specimen was found dead in 2005 (pers. comm. Juan Soy).

Population Trend
Decreasing
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Threats

Threats

Major Threats
Feral dogs and cats are probably the greatest threat to this species. In addition to predation by introduced predators, habitat loss is also a factor contributing to the solenodon's rarity. The Cuban solenodon is not hunted for food.
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Management

Conservation Actions

Conservation Actions
This species has been recorded from Pico Cristal and Alexander Humboldt National Parks.
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Relevance to Humans and Ecosystems

Benefits

Economic Importance for Humans: Negative

There is no negative effect of Cuban solenodons on humans, unless one is provoked and bites in self-defense.

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Economic Importance for Humans: Positive

Cuban solenodons are important predators of invertebrates that may act as pests.

Positive Impacts: controls pest population

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Wikipedia

Cuban solenodon

The Cuban solenodon or almiqui (Solenodon cubanus), is a species of soricomorph that is endemic to Cuba. It belongs to the family Solenodontidae along with a similar species, the Hispaniolan solenodon (Solenodon paradoxus). The solenodon is unusual among mammals in that its saliva is venomous.

Contents

Rediscovery

Since its discovery in 1861 by the German naturalist Wilhelm Peters, only 36 had ever been caught. By 1970, some thought that the Cuban solenodon had become extinct, since no specimens had been found since 1890. Three were captured in 1974 and 1975, and subsequent surveys showed that it still occurred in many places in central and western Oriente Province, at the eastern end of Cuba; however, it is rare everywhere. Prior to 2003, the most recent sighting was in 1999, mainly because it is a nocturnal burrower, living underground, and thus is very rarely seen. The Cuban solenodon that was found in 2003, named Alejandrito, brought the number ever caught to 37. It had a mass of 24 ounces (0.68 kg) and was healthy. It was released back into the wildlife after two days of scientific study were completed.

Appearance

With small eyes, and dark brown to black hair, the Cuban solenodon is sometimes compared to a shrew, although it most closely resembles members of the family Tenrecidae, of Madagascar. It is 16–22 inches (41–56 cm) long from nose to tail-tip and resembles a large brown rat with an extremely elongated snout and a long, naked, scaly tail.

Status

The Cuban solenodon was declared extinct in 1970. They were rediscovered in 1974. Since 1982 it has been listed as an endangered species, in part because it only breeds a single litter of one to three in a year, and because of predation by species that were introduced by humans.

Behavior

It has a varied diet. At night, they search the forest floor litter for insects and other invertebrates, fungi, and roots. They climb well and feed on fruits, berries, and buds, but have more predatory habits, too. With venom from modified salivary glands in the lower jaw, it can kill lizards, frogs, small birds, or even rodents. They seem not to be immune to the venom of their own kind, and there are records of cage mates dying after fights.

They produce litters consisting of 1 to 3 young.

References

  1. ^ Hutterer, Rainer (16 November 2005). "Order Soricomorpha (pp. 220-311)". In Wilson, Don E., and Reeder, DeeAnn M., eds. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press, 2 vols. (2142 pp.). pp. 222-223. ISBN 978-0-8018-8221-0. OCLC 62265494. http://www.bucknell.edu/msw3/browse.asp?id=13700016. 
  2. ^ Soy, J. & Mancina, C. A. (2008). "Solenodon cubanus". IUCN Red List of Threatened Species. Version 2011.1. International Union for Conservation of Nature. http://www.iucnredlist.org/apps/redlist/details/20320. Retrieved 25 June 2011. 
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